Submission #250625

#	Time	Username	Problem	Language	Result	Execution time	Memory
250625		dvdg6566	Simfonija (COCI19_simfonija)	C++14	55 / 110	62 ms	7544 KiB

simfonija

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vi;
typedef pair<ll,ll> pi;
typedef vector<pi> vpi;
typedef double ld;
#define pb emplace_back
#define mp make_pair
#define lb lower_bound
#define ub upper_bound
#define ALL(x) x.begin(), x.end() 
#define SZ(x) (ll)x.size()
#define f first
#define s second
const ll MAXN=100001;
const ll MAXK=1000001;
const ll INF = 1e13;
const ll MOD = 1e9+7;

vi V;
ll T;
ll A[MAXN];
ll B[MAXN];
ll N,K;
multiset<int> lft;
multiset<int> rgt;


int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	cin>>N>>K;
	if(N==K){cout<<0;return 0;}
	for(int i=0;i<N;++i){
		cin>>A[i];
	}
	for(int i=0;i<N;++i){
		cin>>B[i];
		V.pb(B[i]-A[i]);
	}
	ll res=0;
	ll ans=INF;
	sort(ALL(V));
	int cutoff=V[(N-K)/2];

	for(int i=0;i<N-K;++i){
		if(V[i]<=cutoff){
			lft.insert(V[i]);
			res+=cutoff-V[i];
		}
		else {
			rgt.insert(V[i]);
			res+=V[i]-cutoff;
		}
	}
	ans=min(ans,res);
	for(int i=0;i<K;++i){
		rgt.insert(V[i+N-K]);
		lft.erase(lft.find(V[i]));
		res+=abs(V[i+N-K]-cutoff);
		res+=abs(V[i]-cutoff);
		while(SZ(lft) < SZ(rgt)){
			ll newct=*rgt.begin();
			ll delta=newct-cutoff;
			res+=delta*(-SZ(rgt)+SZ(lft));
			while(SZ(rgt)&&*rgt.begin()==newct){
				lft.insert(newct);
				rgt.erase(rgt.begin());
			}
		}
		ans=min(ans,res);
	}
	cout<<ans;
}

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 11 / 11
• Subtask 5: 0 / 11
• Subtask 6: 0 / 11
• Subtask 7: 0 / 11
• Subtask 8: 0 / 11
• Subtask 9: 0 / 11
• Subtask 10: 11 / 11